Amon Hen was a hill on the original northern borders of Gondor, standing above the western banks of Nen Hithoel above Rauros. On its summit, the Gondorians had constructed a high seat: a chair held up from the hill on four tall pillars, and reached by a long flight of stone steps. The makers of the seat had constructed it with the power to enhance vision, so that a viewer seated there could look out across Gondor and its neighbouring lands and see events there with astonishing clarity.